New to form new to scrapping sorta

New member new to scraping
Started scraping first of this year to stretch farm dollars better before that I collected metal to repurpose it into something else and still do to a point but I stopped by a computer repair shop and got 30 old not working computers and am in the process of tearing them apart and separating everything long job. For Spare time thing . Also have had some other calls to come clean out a barn but that will be next weekend job and was wondering what was inside a compressor from a window unit I have been given one and also an old fridge and chest freezer which will have compressors on them.